From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 81C573E44ED; Wed, 2 Sep 2026 07:48:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788335302; cv=none; b=WgWEJrxa8xD2wvQQ8ZSsJLWbXcgCUTopbTWgmYHMZVCr2nWO62WsiFvaK42HpAX7olvX7hxst64erxBRX2BUiVMSTNGmqyPLBwUm0Cd2aYycEUzYLHbEf60YWnbFqnqlN01DG8HzrNUJne94fjOwjQSqzJWymt3dSiZR5Dvlh44= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788335302; c=relaxed/simple; bh=19FQYqSJVhG0lf1+jj01kv0U9gP4mk9Zbsg88tIcD+c=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References: MIME-Version:Content-Type; b=AxaRlPhZoMkqVJkP8lfJY3yNBjCRhG2J6N/aYnpb0xyoIhsGkFMeOtxOy8ZNsWUQfxw3Nt6AndxjnpUcwbUtTGrQvrW75X1/Zc77xoDJwrr1ejWjpuDK/2JdQNwRm+R4okRWdJVpEfjbYsP+SARY+7tO7sgda0vZHvk3f8mYq1g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=izYq5VJk; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="izYq5VJk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 068E01F000E9; Wed, 2 Sep 2026 07:48:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788335301; bh=OeADUFwIew+k818uFxxMlUv0AMDwYY19D1ydeF7tVUI=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=izYq5VJk2wZVFpoRFQlmdL1wKt3D9KB5P6sF4EX0cOHPdGByj4Rd9mxXLJ7FUSTHq ey3Ui/L0pSBVuFc8OMCI4bqP/XNLyzPsnpESX3ZCtNav2xApANu8BWjS1eQPUB6zoG JYCmTzO1WiHQZtodhqFB/kvvmFwyg5GQymdOBFMonlMQurPAwAjAc3Z2uMQ9qNwcEG PlzK+VFTzM2iijqQUNtWaS/rUpMKvzHaM7yNRoZMGKhjVCRoQAEwCuwieOLNNNx8LD WRe7gGAMK2Ae4WGzd4HobxKWfAApolDjJlBHwJu8NoRdeCJRG75QHoDz76Jb2D3SfB eesE4iLZSIpMQ== Received: from sofa.misterjones.org ([185.219.108.64] helo=lobster-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1x1fhj-00000003loj-181o; Wed, 02 Sep 2026 07:48:19 +0000 Date: Wed, 02 Sep 2026 08:50:52 +0100 Message-ID: <87jyp4m6qr.wl-maz@kernel.org> From: Marc Zyngier To: Khushit Shah Cc: Catalin Marinas , Will Deacon , Mark Rutland , Shameer Kolothum , Oliver Upton , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH v1] arm64: errata: pass REVIDR when matching target implementation CPUs In-Reply-To: <20260831105444.4065831-1-khushit.shah@nutanix.com> References: <20260831105444.4065831-1-khushit.shah@nutanix.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/30.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: khushit.shah@nutanix.com, catalin.marinas@arm.com, will@kernel.org, mark.rutland@arm.com, skolothumtho@nvidia.com, oupton@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false On Mon, 31 Aug 2026 11:54:44 +0100, Khushit Shah wrote: > > When target implementation CPUs are provided, is_affected_midr_range() > accidentally passed the MIDR as both arguments to __is_affected_midr_range(), > so the REVIDR mask check operated on the wrong register. > > Pass REVIDR as intended. > > Fixes: 86edf6bdcf05 ("smccc/kvm_guest: Enable errata based on implementation CPUs") > Cc: stable@vger.kernel.org > Signed-off-by: Khushit Shah Acked-by: Marc Zyngier M. -- Jazz isn't dead. It just smells funny.